During recent years, there has been a growing interest in CEO narcissism across disciplines. Various scholars document that CEO narcissism is an important factor that should not be overlooked when analyzing various organizational outcomes and strategies. Research on CEO narcissism has focused on its negative implications on organization outcomes. However, little attention has been paid to its effect on corporate social responsibility (CSR). This study explores the relationship between CEO narcissism and two distinct facets of CSR (stakeholder management and social issue participation), while taking into account the moderating role of outside board of directors. Using a sample of publicly traded U.S restaurants, the results document that an outside board of directors plays a moderating role on the relationship between CEO narcissism and the two distinct facets of CSR.